<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      let computer = {
        goodsName: "电脑",
        price: 6000,
        leftCount: 99,
      }
      computer.price = 5999
      document.write(computer.price)
    </script>
  </body>
</html>
